Introduced
three month later than the TI-1200 the TI-1250 was the "fully loaded" design.
Basically both calculators were identical, most important was the higher sales
margin during the price wars due to the additional memory.

The later TI-1450 was nothing else than a
cosmetically
enhanced version of the TI-1250. Don't miss the colorful TI-1255
and the rare CONCEPT II.

Within one year the color of the display frame was changed
from gold to silver, view the new design here.
Production of the TI-1250 was eventually shifted to Hong Kong, view one of them here.

The Dutch department store HEMA sold an identical model as reactor
1250.
A similar model was sold by Western Auto as the electronic
Wizard M4987 and True Value Hardware with the
model T-1225.

The
basic calculator integrated circuit (IC) of this design was the TMS0952. With
the TMS0972 manufacturing costs of the TI-1250 were lowered. Read more about the differences between the TMS0952 and
TMS0972 here.